The course content is designed to provide the student with an introduction to the causation and concept of diseases with particular emphasis on the pathology commonly presented in diagnostic radiography. The brief review of anatomy and physiology, as well as medical terminology, will be presented in the study of body systems. Etiology, pathophysiological responses, clinical manifestation and radiographic appearance will be discussed. In the degenerative and additive pathologies studied, the effects on the image and technical considerations will be discussed.